软件定义无线网络异构服务功能链低功耗部署方法  

Low-power Deployment Method for Heterogeneous Service Function Chain of Software-defined Wireless Network

作　　者：龙宇翔[1] LONG Yuxiang(Changchun Medical College,Information Departmen,Changchun 130031,China)

机构地区：[1]长春医学高等专科学校信息部,吉林长春130031

出　　处：《新乡学院学报》2024年第6期40-44,共5页Journal of Xinxiang University

摘　　要：受到节点性能以及功耗方面的限制,在对无线网络异构服务功能链进行部署时,通常会因缺乏节点重要程度评估而导致部署效果不佳。对此,提出软件定义无线网络异构服务功能链低功耗部署方法。首先通过对网络协议内容进行获取,实现拓扑结构感知,并构建出节点重要度与节点链路数目之间的相关关系,对网络节点的重要度进行计算。然后将原始服务功能链拆分为多个独立的服务功能,并以节点综合度最高以及网络功耗最低构建出的目标函数作为映射方案求解途径,将服务功能映射到物理节点上。利用SDN控制器的编程接口,将功能链分解与映射的结果转化为网络配置指令。最后构建交换机的流量需求信息与待部署节点之间的映射关系,从而实现低功耗部署。在实验中,对提出的服务功能链部署方法进行了部署效果的检验。最终的测试结果表明,采用提出的方法对服务功能链进行模拟部署后,软件定义无线网络的功耗值更低,具备较为理想的部署效果。Due to the limitation of node performance and power consumption,when deploying heterogeneous service func-tional chains in wireless networks,the deployment effect is usually poor due to the lack of evaluation of node importance.In this paper,a low-power deployment method of heterogeneous service function chain in software-defined wireless network is proposed.Firstly,topology awareness is realized by obtaining the content of network protocol,and the correlation between node importance and the number of node links is constructed to calculate the importance of network nodes.Then,the original service function chain is divided into several independent service functions,and the objective function constructed with the highest node integration and the lowest network power consumption is used as the solution to the mapping scheme,and the service functions are mapped to physical nodes.Using the programming interface of SDN controller,the results of functional chain decomposition and mapping are transformed into network configuration instructions.Finally the mapping relationship between the traffic demand information of the switch and the nodes to be deployed is constructed,so as to realize low-power deployment.In the experiment,the deployment effect of the proposed service function chain deployment method is tested.The final test results show that the power consumption of the software defined wireless network is lower and the deployment effect is ideal after the proposed method is used to simulate the deployment of the service function chain.

关 键 词：软件定义无线网络 重要度计算 服务功能链 部署机制 映射关系 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]